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| 1 | High-average-power, high-repetition-rate tunable terahertz difference frequency generation with GaSe crystal pumped by 2 μm dual-wavelength intracavity KTP optical parametric oscillator显示文摘We have demonstrated a high-average-power,high-repetition-rate optical terahertz(THz)source based on difference frequency generation(DFG)in the GaSe crystal by using a near-degenerate 2μm intracavity KTP optical parametric oscillator as the pump source.The power of the 2μm dual-wavelength laser was up to 12.33 W with continuous tuning ranges of 1988.0–2196.2 nm/2278.4–2065.6 nm for two waves.Different GaSe cystal lengths have been experimentally investigated for the DFG THz source in order to optimize the THz output power,which was in good agreement with the theoretical analysis.Based on an 8 mm long GaSe crystal,the THz wave was continuously tuned from 0.21 to 3 THz.The maximum THz average power of 1.66μW was obtained at repetition rate of 10 kHz under 1.48 THz.The single pulse energy amounted to 166 pJ and the conversion efficiency from 2 μm laser to THz output was 1.68×10^(-6).The signal-to-noise ratio of the detected THz voltage was 23 dB.The acceptance angle of DFG in the GaSe crystal was measured to be 0.16°. | DEXIAN YAN YUYE WANG DEGANG XU PENGXIANG LIU CHAO YAN JIA SHI HONGXIANG LIU YIXIN HE LONGHUANG TANG JIANCHEN FENG JIANQIN GUO WEI SHI KAI ZHONG YUEN H.TSANG JIANQUAN YAO | 2017 | Photonics Research2017，5，2： | 5 |
| 2 | The Conceptual Design Method for a Pumping Unit Based on QFD and TRIZ显示文摘优秀功能推广(QFD ) 是一个优秀系统,那能帮助设计满足顾客的需要的新奇产品。有创造力的解决问题(TRIZ ) 的理论是在帮助解决在设计过程遇到的困难的技术问题的一个很强大的工具。介绍 QFD 和 TRIZ 进抽的单位的概念的设计联合这二个理论的优点,不同用户的因此相遇的不同要求。它能告诉我们“什么我们应该做它”与 QFD 并且“怎么我们应该做它”与 TRIZ。概念的设计方法,基于 QFD 和 TRIZ,被介绍并且过去常分析并且评估抽的概念的设计工程联合起来。 | Zhang Peng Gai Feng Guan Hongxiang Li Ping | 2005 | Petroleum Science2005，2，4： | 4 |
| 3 | Laser-generated thermoelastic acoustic sources and acoustic waves in anisotropic plate显示文摘The effect of anisotropy on the ultrasound wave generation and propagation in the unidirectional fi- ber-reinforced composite plate has been investigated. A quantitative numerical model for the la- ser-generated ultrasound in the thermoelastic regime was presented by using a finite element method. All factors, such as spatial and time distributions of the incident laser beam, optical penetration, ther- mal diffusivity, and source-receiver distance can be taken into account. Numerical results show that the effect on ultrasound waveform of the size of the laser volume source produces strong bipolar longitu- dinal waves and improves the amplitude and directivity of the longitudinal waves. A fiber-reinforced composite material exhibits isotropic or homogenous behavior for ultrasonic wave propagation per- pendicular to the fiber direction. For ultrasonic propagation along the fiber direction, ultrasonic dis- persion resulting from the inhomogeneous nature of the material affects the laser ultrasonic waveforms. As the dimensions of the laser pulse are increased in space and time, the displacement waveform be- comes broader and its magnitude decreases. | XU BaiQiang WANG Feng FENG Jun WANG JiJun SUN HongXiang LUO Ying | 2009 | Science China(Technological Sciences)2009，52，3： | 3 |
| 4 | Biofilm response and removal via the coupling of visible-light-driven photocatalysis and biodegradation in an environment of sulfamethoxazole and Cr(Ⅵ)显示文摘The widespread contamination of water systems with antibiotics and heavy metals has gained much attention.Intimately coupled visible-light-responsive photocatalysis and biodegradation(ICPB)provides a novel approach for removing such mixed pollutants.In ICPB,the photocatalysis products are biodegraded by a protected biofilm,leading to the mineralization of refractory organics.In the present study,the ICPB approach exhibited excellent photocatalytic activity and biodegradation,providing up to~1.27 times the degradation rate of sulfamethoxazole(SMX)and 1.16 times the Cr(Ⅵ)reduction rate of visiblelight-induced photocatalysis.Three-dimensional fluorescence analysis demonstrated the synergistic ICPB effects of photocatalysis and biodegradation for removing SMX and reducing Cr(Ⅵ).In addition,the toxicity of the SMX intermediates and Cr(Ⅵ)in the ICPB process significantly decreased.The use of MoS_(2)/CoS_(2)photocatalyst accelerated the separation of electrons and holes,with·O_(2)^(–)and h+attacking SMX and ereducing Cr(Ⅵ),providing an effective means for enhancing the removal and mineralization of these mixed pollutants via the ICPB technique.The microbial community results demonstrate that bacteria that are conducive to pollutant removal are were enriched by the acclimation and ICPB operation processes,thus significantly improving the performance of the ICPB system. | Liushu Pan ZhouWan Qilin Feng Jue Wang Jianhua Xiong Shuangfei Wang Hongxiang Zhu Guoning Chen | 2022 | Journal of Environmental Sciences2022，34，12： | 2 |
| 5 | Enhancement of strength-ductility balance of heavy Ti and Al alloyed FeCoNiCr high-entropy alloys via boron doping显示文摘As one of the most effective mechanisms,precipitation-hardening is widely used to strengthen high-entropy alloys.Yet,heavy precipitation-hardened high-entropy alloys usually exhibit serious embrittlement.How to effectively achieve ultra-high strength and maintain reliable ductility remains a challenge.Here,we report a study of doping extremely little boron to meet this target.We found that adding of 30 ppm boron into the heavy Ti and Al alloyed FCC FeCoNiCr high-entropy,(FeCoNiCr)_(88) Ti_(6) Al_(6) HEA(at.%)which is strengthened mainly by both coarse BCC-based(Ni,Co)_(2) TiAl Heusler and fine L12-type FCC-based(Ni,Co)_(3) TiAl precipitates and shows ultrahigh strength but poor ductility,could significantly change the original microstructure and consequently improve mechanical performance,owing to the well-known effect of boron on reducing the energy of grain boundaries.The boron addition can(1)eliminate microcavities formed at Heusler precipitate-matrix interfaces;(2)suppress the formation and segregation of coarse BCC Heusler precipitates;(3)promote the formation of L12 nanoparticles.This changes of microstructure substantially improve the tensile ductility more than by~86%and retain comparable or even better ultimate tensile strength.These findings may provide a simple and costless solution to produce heavy precipitation-strengthened HEAs with ultrahigh strength and prevent accidental brittleness. | Yongliang Qi Tinghui Cao Hongxiang Zong Yake Wu Lin He Xiangdong Ding Feng Jiang Shenbao Jin Gang Sha Jun Sun | 2021 | Journal of Materials Science & Technology2021，，16： | 2 |
| 6 | CTCs Detection and Whole-exome Sequencing Might Be Used to Differentiate Benign and Malignant Pulmonary Nodules显示文摘Background and objective Low-density computed tomography(LDCT)improved early lung cancer diagnosis but introduces an excess of false-positive pulmonary nodules data.Hence,accurate diagnosis of early-stage lung cancer remains challenging.The purpose of the study was to assess the feasibility of using circulating tumour cells(CTCs)to differentiate malignant from benign pulmonary nodules.Materials and methods 122 patients with suspected malignant pulmonary nodules detected on chest CT in preparation for surgery were prospectively recruited.Peripheral blood samples were collected before surgery,and CTCs were identified upon isolation by size of epithelial tumour cells and morphological analysis.Laser capture microdissection,MALBAC amplification,and whole-exome sequencing were performed on 8 samples.The diagnostic efficacy of CTCs counting,and the genomic variation profile of benign and malignant CTCs samples were analysed.Results Using 2.5 cells/5 m L as the cut-off value,the area under the receiver operating characteristic curve was of 0.651(95%confidence interval:0.538-0.764),with a sensitivity and specificity of 0.526 and 0.800,respectively,and positive and negative predictive values of 91.1%and 30.3%,respectively.Distinct sequence variations differences in DNA damage repair-related and driver genes were observed in benign and malignant samples.TP53 mutations were identified in CTCs of four malignant cases;in particular,g.7578115T>C,g.7578645C>T,and g.7579472G>C were exclusively detected in all four malignant samples.Conclusion CTCs play an ancillary role in the diagnosis of pulmonary nodules.TP53 mutations in CTCs might be used to identify benign and malignant pulmonary nodules. | Changdan XU Xiaohong XU Weipeng SHAO Hongliang SUN Xiaohong LIU Hongxiang FENG Xianbo ZUO Jingyang GAO Guohui WANG Xiongtao YANG Runchuan GU Shutong GE Shijie WANG Liwei GAO Guangying ZHU | 2023 | 中国肺癌杂志2023，26，6： | 1 |
| 7 | Cellular automata ship traffic flow model considering integrated bridge system 显示文摘 | FENG Hongxiang | 2013 | International Journal of u-and e-Service Science and Technology2013，6，6： | 1 |
| 8 | Degradation of Spent Radioactive Ion Exchange Resins and Its Mechanisms by Fenton Process显示文摘Spent IERs are released during the operation and decommissioning of nuclear facilities.The safe and efficient treatment of spent IERs is an emergent problem in nuclear industry.IRN77 is a typical ion exchange resin widely used in many nuclear power plants.Fenton process can degrade organic resins and reduce the radioactive residues volume and the disposal cost significantly.In this work,the IRN77 resin was selected as a model ion exchange resin and its treatment via Fenton process was investigated.The influencing factors for resin degradation,including catalyst dosage,reaction time,initial pH,temperature and oxidant dosage were investigated and optimized via the single-factor experimental method.Under the reaction temperature of 100℃ and reaction time of 120 min at initial pH of 2,more than 97%COD was removed with 1.66 g H_(2)O_(2) and 32 mg FeSO_(4)·7H_(2)O added to per gram of wet resin.The catalyst dosage and H_(2)O_(2) dosage can decrease 78%and 50%respectively compared to previous results.SEM,FT-IR and ion chromatograph were employed to characterize the resin beads,soluble organics and intermediates during the degradation reaction.Based on the characterization results,the resin degradation pathway was discussed in detail and it is proposed to three stages including beads dissociation,styrene and divinylbenzene decomposition and carboxylic acids mineralization.During the IERs degradation,formic acid,acetic acid,propionic acid and oxalic acid were quantitatively monitored as main intermediates,and oxalic acid accounted for over 90%of COD in the final residue solution.Fenton process is suggested as a promising resin degradation method. | Wendong Feng Jian Li Hongxiang An Yunhai Wang | 2020 | Journal of Renewable Materials2020，8，10： | 1 |
| 9 | In vitro and in vivo mmunosupp ressive activity of Spica Prunellae ethanol extract on the immune responses in mice显示文摘 | Sun Hongxiang Qin Feng Pan Yuanjiang | 2005 | Journal of ethnopharmacology2005，101，10： | 1 |
| 10 | Research on an Intelligent Decision Support System for a Conceptual Innovation Design of Pumping Units Based on TRIZ显示文摘Attention is concentrated on how to perform the innovative design during the process of pumping unit conceptual design, and how to enhance design efficiency and inspire creativity. Aiming at the shortages of conceptual design, introducing the theory of inventive problem solving (TRIZ) into the mechanical product design for producing innovative ideas, and using the advanced computer-aided technique, the intelligent decision support system (IDSS) based on TRIZ (TRIZ-IDSS) has been constructed. The construction method, system structure, conceptual production, decision-making and evaluation of the problem solving subsystem are discussed. The innovative conceptual design of pumping units indicates that the system can help the engineers open up a new space of thinking, overcome the thinking inertia, and put forward innovative design concepts. This system also can offer the scientific instructions for the innovative design of mechanical products. | Zhang Peng He Chuan Guan Hongxiang Gai Feng Qi Bin | 2006 | Petroleum Science2006，3，1： | 1 |
| 11 | Laser-generated thermoelastic acoustic sources and Lamb waves in anisotropic plates显示文摘 | Baiqiang Xu Jun Feng Guidong Xu Jijun Wang Hongxiang Sun Guorong Cao | 2008 | Applied Physics A2008，，1： | 1 |
| 12 | All-fiber generation of arbitrary cylindrical vector beams on the first-order Poincare sphere显示文摘We propose a linear mapping relationship between the polarization of the fundamental mode and the cylindrical vector(CV)modes on the first-order Poincaresphere(FOPS)in fiber.The new method is based on the fourdimensional complex Jones matrices in terms of the linearly polarized mode bases.With our theoretical model,an all-fiber approach to generate arbitrary CV beams on the FOPS is proposed theoretically and verified experimentally.In the experiment,through the combination of a mode converter and a two-segment cascaded few-mode fiber with fixed stresses,it is possible to generate all CV modes on the FOPS by only adjusting the polarization of the fundamental mode.The Stokes parameters of the output light are measured to verify our scheme,which shows good agreement with the theoretical prediction.The method may provide a convenient way to generate CV beams and evolve the polarization states in any path on the FOPS,which is expected to have potential applications in encoding information and quantum computation. | LIPENG FENG YAN LI SIHAN WU XUN GUAN CHEN YANG WEIJUN TONG WEI LI JIFANG QIU XIAOBIN HONG YONG ZUO HONGXIANG GUO ERHU CHEN JIAN WU | 2020 | Photonics Research2020，8，8： | 1 |
| 13 | Insight into macroscale superlubricity of polyol aqueous solution induced by protic ionic liquid显示文摘Currently,macroscale liquid superlubricity remains limited to low applied loads and typical ceramic friction pairs.In this study,a robust macroscale superlubricity with a coefficient of friction(COF)of approximately 0.006 is realized at the bearing steel interface induced by protic ionic liquids(ILs)in propylene glycol aqueous solution,and the lubrication system exhibits excellent anti-corrosion properties.Results show that superlubricity can be achieved by employing ILs with longer alkyl chains over a wide load(<350 N)and speed(>700 r/min)range.By systematically investigating factors affecting superlubricity,including the IL structure,ionization degree,test conditions,polyol,water-to-alcohol ratio,and lubrication state,the superlubricity mechanism is discussed.Notably,a thicker and denser stern layer can be formed using ILs with longer alkyl chains,which participates in the tribochemical reaction with the metal substrate to form a tribofilm during rubbing.The hydrogen bond network layer formed by the hydrogen ion and polycol aqueous solution can withstand high applied loads.Water can be used to reduce the shear stress of polyols,and enable superlubricity to be achieved under high-speed rotations.Moreover,an inevitable running-in period serves as a dispersing contact stress and dynamically forms a lubricating film,where the lubrication state locates mixed lubrication and then transforms into boundary lubrication as the roughness of the contact surface increases.This study is expected to significantly promote the development and application of superlubricity in the engineering field. | Zhiwen ZHENG Xiaolong LIU Hongxiang YU Haijie CHEN Dapeng FENG Dan QIAO | 2022 | Friction2022，10，12： | 0 |
| 14 | Effect of functional groups on tribological properties of lubricants and mechanism investigation显示文摘Nine organic compounds were utilized as model lubricants to investigate the impact of functional groups on tribological performances.Nonanoic Acid with carboxyl showed the best lubrication properties,and fluid film and tribofilm were coexistent in its friction test,bringing a low friction coefficient and wear rate.In addition,the lubricant with low friction coefficient corresponded to high adsorption energy in density functional theory(DFT)calculations.And the lubricant forming adsorption film with large surface energy displayed small wear rate in friction test.Moreover,adsorption energies positively correlated surface energies.Based on the experimental results,the action mechanism of functional groups on tribological properties of lubricants was proposed.Various functional groups make lubricant molecules show different adsorption energies and surface energies.Lubricant molecules with high adsorption energy are more likely to adsorb on substrates and form a vertical monolayer,which can maintain a regular molecular brush structure during friction and bring a low friction coefficient.And lubricant molecules with high surface energy may be more prone having tribochemical reactions during friction and forming protective tribofilm,which leads to a low wear rate. | Hongxiang YU Haijie CHEN Zhiwen ZHENG Dan QIAO Dapeng FENG Zhenbin GONG Guojun DONG | 2023 | Friction2023，11，6： | 0 |
| 15 | Fatty-acids and their δ^(13)C characteristics of seep carbonates from the northern continental slope of Gulf of Mexico显示文摘Here we reported the fatty-acids and their δ13 C values in seep carbonates collected from Green Canyon lease block 185 (GC 185;Sample GC-F) at upper continental slope (water depth:~540 m),and Alaminos Canyon lease block 645 (GC 645;Sample AC-E) at lower continental slope (water depth:~2200 m) of the Gulf of Mexico.More than thirty kinds of fatty acids were detected in both samples.These fatty acids are maximized at C 16.There is a clear even-over-odd carbon number predominance in carbon number range.The fatty acids are mainly composed of n-fatty acids,iso-/anteiso-fatty acids and terminally branched odd-numbered fatty acids (iso/anteiso).The low δ13 C values (-39.99‰ to -32.36‰) of n-C 12:0,n-C 13:0,i-C 14:0 and n-C 14:0 suggest that they may relate to the chemosynthetic communities at seep sites.The unsaturated fatty acids n-C 18:2 and C 18:1 △9 have the same δ13 C values,they may originate from the Beggiatoa/Thioploca.Unlike other fatty acids,the terminally branched fatty acids (iso/anteiso) show lower δ13 C values (as low as -63.95‰) suggesting a possible relationship to sulfate reducing bacteria,which is common during anaerobic oxidation of methane at seep sites. | GUAN HongXiang FENG Dong WU NengYou CHEN DuoFu ROBERTS H H WU DaiDai | 2010 | Chinese Science Bulletin2010，55，8： | 0 |
| 16 | A Novel Thermostable β-Galactosidase from Geobacillus kaustophilus HTA42显示文摘 | YU Shanshan YIN Hongbing WANG Xinying FENG Li XU Chunchun LI Jing HAN Hongxiang LIU Shuying | 2014 | Chemical Research in Chinese Universities2014，30，5： | 0 |
| 17 | Sema3A secreted by sensory nerve induces bone formation under mechanical loads显示文摘Bone formation and deposition are initiated by sensory nerve infiltration in adaptive bone remodeling. Here, we focused on the role of Semaphorin 3A(Sema3A), expressed by sensory nerves, in mechanical loads-induced bone formation and nerve withdrawal using orthodontic tooth movement(OTM) model. Firstly, bone formation was activated after the 3rd day of OTM,coinciding with a decrease in sensory nerves and an increase in pain threshold. Sema3A, rather than nerve growth factor(NGF),highly expressed in both trigeminal ganglion and the axons of periodontal ligament following the 3rd day of OTM. Moreover, in vitro mechanical loads upregulated Sema3A in neurons instead of in human periodontal ligament cells(hPDLCs) within 24 hours.Furthermore, exogenous Sema3A restored the suppressed alveolar bone formation and the osteogenic differentiation of hPDLCs induced by mechanical overload. Mechanistically, Sema3A prevented overstretching of F-actin induced by mechanical overload through ROCK2 pathway, maintaining mitochondrial dynamics as mitochondrial fusion. Therefore, Sema3A exhibits dual therapeutic effects in mechanical loads-induced bone formation, both as a pain-sensitive analgesic and a positive regulator for bone formation. | Hongxiang Mei Zhengzheng Li Qinyi Lv Xingjian Li Yumeng Wu Qingchen Feng Zhishen Jiang Yimei Zhou Yule Zheng Ziqi Gao Jiawei Zhou Chen Jiang Shishu Huang Juan Li | 2024 | International Journal of Oral Science2024，16，1： | 0 |
| 18 | Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface显示文摘Macroscale superlubricity is a prospective strategy in modern tribology to dramatically reduce friction and wear of mechanical equipment;however,it is mainly studied for point-to-surface contact or special friction pairs in experiments.In this study,a robust macroscale superlubricity for point-to-point contact on a steel interface was achieved for the first time by using hydroxylated modified boron nitride nanosheets with proton-type ionic liquids(ILs)as additives in ethylene glycol aqueous(EG_(aq)).The detailed superlubricity process and mechanism were revealed by theoretical calculations and segmented experiments.The results indicate that hydration originating from hydrated ions can significantly reduce the shear stress of EG_(aq),which plays an essential role in achieving superlubricity.Moreover,the IL induces a tribochemical reaction to form a friction-protective film.Hydroxylated boron nitride nanosheets(HO-BNNs)function as a polishing and self-repairing agent to disperse the contact stress between friction pairs.Superlubricity involves the change in lubrication state from boundary lubrication to mixed lubrication.This finding can remarkably extend the application of superlubricity for point-to-point contact on steel surfaces for engineering applications. | Zhiwen ZHENG Xiaolong LIU Guowei HUANG Haijie CHEN Hongxiang YU Dapeng FENG Dan QIAO | 2022 | Friction2022，10，9： | 0 |
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